\begin{table}[!t]

\caption{\label{tab:mention_descriptives_uk_commons}Descriptive statistics of group mentions in labeled sentences in our UK \emph{House of Commons} corpus.}
\centering
\fontsize{10}{12}\selectfont
\begin{tabular}[t]{lrrrrrrrr}
\toprule
\multicolumn{2}{c}{ } & \multicolumn{2}{c}{Mentions} & \multicolumn{5}{c}{$N$ tokens} \\
\cmidrule(l{3pt}r{3pt}){3-4} \cmidrule(l{3pt}r{3pt}){5-9}
Category & Share any mention & $N$ & $N_{\text{unique}}$ & Mean & 25\% perc. & 50\% perc. & 75\% perc. & Max.\\
\midrule
social group & 0.292 & 557 & 451 & 3.583 & 1 & 2 & 5 & 25\\
political group & 0.046 & 80 & 63 & 2.638 & 2 & 2 & 3 & 7\\
political institution & 0.330 & 642 & 288 & 2.540 & 2 & 2 & 3 & 16\\
collective actor & 0.172 & 321 & 254 & 2.287 & 1 & 2 & 3 & 10\\
implicit group reference & 0.040 & 66 & 18 & 1.152 & 1 & 1 & 1 & 10\\
\bottomrule
\end{tabular}
\end{table}
